Machine foe assorting caebons



(No ModeL) 4 SheetsSheet 1.

H. S. HART. I MACHINE FOR ASSORTING GARBONS- N0. 597,46. Patented Jan.18, 1898.

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(No Model.)

H. S. HART. MAGHINEFOR ASSORTING GARBONS.

No. 597,646. Patented Jan. 18, 1898.

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(No Model.)

H. S, HART. MAUHINE FOR ASSORTING OARBONS.

No. 597,646. Patented Jan. 18, 1898.

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(No Model. )I 4 Sfieets-Sheet 4.

H. S. HART.

MACHINE FOR ASSORTING GARBONS. I

Patented Jan. 18, 1898.

Inventor Mine e.

of the cylinder. Each pusher is provided with a sliding ejector G, (moreparticularly described hereinafter,) and when such ejectors are in theirnormal posit-ions (illustrated in the case of the upper one shown atFig. 3) they project at one end sufficiently so that as they move aroundin their endless path such ends will come into contact with the arm F ofthe tripping mechanism and carry said arm upward and thereby impart themovem ent to the feeding-cylinder necessary to feed a carbon. The arm Fand segment are then at once returned to their normal positions bygravity; but in so doing the segment moves over wheel F withoutactuating it.

The carbon upon its delivery onto the table enters one of the spacesbetween two adjacent pushers and soon passes under the pressure-belt,which presses its end down "uponv the table and at the same time givesita rolling motion. Any imperfection or crookedness in the carbon will nowmanifest itself at its other end by the raising of such end from thetable, and I avail myself of this action as a means of determining whenthe carbons shonld'be ejected as follows: Upon each of the links E,which are in proximity to this rising end of the carbons, I place anelbowlever G, pivoted at Gil-and with one limb extending horizontallyunder the carbon and the other or vertical limb attached to a lightspring G whose tension is constant in the direction which lifts thehorizontal limb of the lever. This lever is therefore actuated bythe'spring whenever the carbon does not by its weight overcome thespring, and consequently Whenever the carbon rises from the table thehorizontal limb of the lever rises to the same extent as the carbon.Adjacent to the upper limb of the leveris a contact-point G having anadjusting -s,crew G against which the lever comes whenever it ispermitted to move by the carbon beyond a. predetermined extent. In Fig.1 this contact is shown as having been established in the case of thelever controlled by the carbon marked W, and this carbon will be ejectedas imperfect-au operation more clearly shown at Fig. 3 and which I willpresently describe. The carbons shown as moving over the table ahead ofthe carbon V are apparently perfect and will be carriedalong by thepushers and discharged onto the platform K, while the one behind carbonW has not proceeded far enough to be tested. The point at which thecontact between the lever and the contact-screw G shall take place mayof course be varied by adjusting said'sorew, and this may be donewhenever it is desired to change the work from one grade of carbons toanother grade. The distance the levers G must move before eifecting thecontact can, however, be regulated by raising or lowering the table A,and the screws A are employed to effect such adjustments, and I preferto make the'changes from one grade to another in this way, because Ithereby make the adjustment elbow-lever Gaud contact-screw G for all thelevers at once instead of separately.

Each ejector G is controlled by electrical devices, the circuit of whichis closed when the lever G touches the contact-screw. These devices arepreferably constructed as follows: Each pusher carries an electromagnetG the armature GT whereof is pivoted at G and is normally swung awayfrom the magnet by a spring G". The magnet is connected by wire G to abrush G so located upon the pusher as to brush against a long contactplate or bar G stationarily located above the table. This bar is inelectrical communication by wire G with the battery G. The pusher alsocarries a second brush G which wipes over a second bar G joined to saidbattery by wire G and this second brush is electrically connected to thecontact G by wire G while the magnet is connected to the body of thepusher by wire G A spring G attached at one end to a stationary point onthe push'eran'd to an arm G on the ejector, is distended when theejector is in its normal position, (see Fig. 8,) and the ejector is heldin this position by locking-catch G on the end of a centrally-pivotedlever G engaging with a projection G on the ejector; (See Figs. '5 and6.) The engagement between the catch G and the projection G is broken bythe fall ofa weight G confined in a proper the lever G opposite to thatengaging the catch. Said weight is normally held up in its cage by theprojection G on the magnetarmature, as plainly'shown at Fig. 5, and isreleased whenever'the magnet is'energized by the closing of the electriccircuit through the Upon jthedescent of the weight the ejector isreleased and immediately ejects the carbon by an endwise thrust againstthe latter, as seen in the case of carbon W in Fig. 3. To bring theejectors back to their original positions after the ejecting operations,their arms H are brought against the inclinedface of a stationary camI-I while moving u'nder'the table, and the weights move back by gravityto their normal positions as soon as the pushers reach the lower part oftheir path and are immediately secured in such positions by the armatureacting under the power of its spring.

The contact-bars (l and G extend only the length of the table, so thatthe circuits can be clos'ed only while the pushers are moving over thetable, and I prefer that at the incoming end they be shortened somewhatto give the carbons time to begin their rolling movement and time todepress the elbow-levers, so as to destroy contact with the screws Gbefore the electricalcircuit can be elfected. Otherwise the ejectormight be operated'needlessly. A

The pressure-belt should simulate the action of the hand in theheretofore customary Way of assorting carbons by manual labor and shouldmove at such a rate as will carry casing or cage G a'nd'act-ing upon theend of I the carbons over the table at the same speed as that given thepushers.

The end of the lever G" which is acted upon by weight G is made heavierthan the end which engages the catch G and this heavy end by itssuperior gravity, after being operated upon and released by the weight,forces the lever again into position to engage the catch when the leveris carried to the under side of the table and is released from theweight. Upon the return of the lever to the upper side of the table itwill be held in engagement with the catch by the pressure exerted. bythe latter under the power of the ejector-spring. Instead of dependingupon gravityto position this lever a spring may be used.

Instead of using the pushers as part of the electric circuits wires maybe substituted should any tendency to short-circuit the current manifestitself.

While I have shown devices which I believe to be practical for effectingthe various operations described, it will be understood that I do notwish to belimited to them except where my claims are laid specificallyto them, as obviously many of. them can be changed and other devicessubstituted without departing from the spirit of the invention.

The machine requires only slight changes to render it adjustable for allthe different lengths of carbons; but as these changes are obvious Ihave not thought it necessary to describe or illustrate them.

I claim 1. In a machine for assort-ing carbons, a table and means forrolling the carbons over the table, in combination with devices forgaging the imperfections of the carbons and ejectors controlled by saidgaging devices, substantially as specified.

2. In a machine for assorting carbons, a table-and a pressure-beltacting to roll the carbons over the table, in combination with devicesfor gaging the imperfections of the carbons and ejectors controlled bysaid gaging devices, substantially as specified.

3. In a machine for assorting carbons, a table and means for rolling thecarbons over the table, in combination with devices for gaging theimperfections of the carbons, ejectors for ejecting the imperfectcarbons, and electrical devices set in operation by the gaging devicesand acting to control the ejectors, substantially as specified.

at. In a machine for assorting carbons, a table and means for rollingthe carbons over the table, in combination with devices for gaging theimperfections or the carbons and ejector's controlled by said gagingdevices and acting to eject the imperfect carbons by'an endwise thrust,substantially as specified.

5. In a carbon-assorting machine, the combination of a table over whichthe carbons may be rolled, and a soft belt passing over the table andbearing upon one end of the carbons and acting to impart the rollingmovement thereto,with means for gaging the crookedness of the carbons,substantially as specified.

6. In a carbon-assorting machine, the combination of a plane-surfacedtable, means for rolling the carbons oversaid table,and means for gagingthe imperfections of the carbons by the extent of their rise from thetable while rolling thereover, substantially as specified.

7. In a carbon-assorting machine, the combination of a plane-surfacedtable, a soft belt moving over the table and bearing upon one end of andimparting a rolling motion to the carbons, and means for gaging theimperfec: tions of the carbons by the extent of rise from the table attheir free ends while rolling, substantially as specified. v

8. In a carbon-assortin g machine, the combination of a plane-surfacedtable, a soft belt moving over the table and bearing upon one end of andimparting a rolling motion to the carbons, means for gaging theimperfections of the carbons by the extent of rise from the table attheir free ends while rolling, and means for ejecting the carbons whoseends rise beyond the predetermined extent, substantially as specified.

9. In a carbon'assorting machine, the combination of a plane-surfacedtable, means for rolling the carbons over said table, means for gagingthe imperfections of the carbons by the extent of their rise from thetable while rolling thereover, and means for keeping the carbonsseparate while moving over the table, substantially as specified.

10. The combination with the table and means for rolling the carbonsthereover, of a gage for gaging the extent of the rise of the carbonsabove the table, such gage consisting of a pivoted lever and a lightspring tending to keep the lever in contact with the carbon,substantially as specified.

11. The combination with the table and means for rolling the carbonsthereover, of a gage for gaging the extent of the rise of the carbonsabove the table, such gage consisting of a spring device acting tomaintain constant contact with the carbon while rolling and to follow itas it rises from the table, substantially as specified.

12. The combination with the table and means for rolling the carbonsthereover, ofa series of gaging devices noting the imperfections in thecarbons, a series of ejectors, a series of magnets controlling saidejectors, and an electric circuit into which said magnets and gagingdevices are brought as they move over the table, and which is completedby said gaging devices when the imperfectcarbons allow a certain amountof movement to said devices, substantially as specified.

13. The combination of the table, the belt, the pushers, the ejectors,the devices controlling the ejectors, the magnets, gaging devices actingalso as circ nit-closers, brushes carried by the pushers andelectrically connected to the magnets and the gaging devices, and thestationary contact-bars connected to a source of electric energy,substantially as specified.

14. The combination with the table and means for rolling the carbonsthereover, of a gage for gaging the extent of the riseof the carbonsabove the table, such gage consisting of a spring device maintainingconstant contact with the carbon While rolling and following it as itrises from the table, and also acting as a circuit-closer, a device forejecting imperfect carbons, and an electric circuit embracing a magnetand said gage device and acting to control said ejector, substantiallyas specified.

15. The combination in an asserting-machine, of a hopper for the carbon,a feed wheel or cylinder below said hopper and provided with grooves orpockets each adapted to hold a single carbon, tripping mechanism foractuating said Wheel, and assorting mechanism receiving the carbons fromsaid Wheel and engaging said tripping mechanism, substantially asspecified.

16. The combination in an assorting-1nachine, of a hopper for thecarbon, a feed Wheel or cylinder below said hopper and provided withgrooves or pockets each adapted to hold a single carbon, trippingmechanism for actuating said wheel, and assorting mechanism receivingthe carbons from said Wheel and provided with ejectors adapted to engagesaid tripping mechanism, substantially as specified.

17. The combination in an assorting-machine, of means for gaging thecrookedness of the carbons with means for selecting and ejecting thecarbons whose crookedness exceeds a predetermined degree, substantiallyas specified.

HARRY STIILLSON HART.

Witnesses:

WILLIAM R. MITCHELL, WM. L. -HOLLOWAY.

